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Black rectangular desktop NAS enclosure with eight drive bays and front status LEDs

Buffalo Technology

Buffalo Technology TS5820DN3204 8-Bay 32TB NAS

SKU CH-8BXX-T4P4V MPN TS5820DN3204

Eight-bay desktop NAS with 32 TB of pre-installed drives, 10 GbE plus dual 1 GbE ports, quad-core 2.04 GHz processor and 8 GB DDR4 memory

  • TypeDesktop NAS
  • StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • Ports1 x 10GbE + 2 x 1GbE
  • Port RJ-451 x 10GbE + 2 x 1GbE
  • Port USB2 x USB3.0 + 2 x USB2.0
  • HDD Interface8 x SATA (8 x Bay)

Included HDD Capacity 32TB (4 x 8TB)

Struck-through versions exist but are not stocked here.

Option Partially Populated

  • 32 TB raw capacity with four 8 TB NAS-grade drives pre-installed
  • Quad-core 2.04 GHz processor and 8 GB DDR4 memory for demanding workloads
  • Native 10 GbE plus two 1 GbE ports for high-speed file transfers
  • RAID 0, 1, 5, 6, 10 and JBOD with snapshot backup and AES-256 encryption
  • VMware and Windows Server 2022 certified for virtualization deployments

8-Bay 32TB Desktop NAS for Business

The Buffalo TeraStation 5020 ships with four 8TB NAS-grade drives pre-installed and RAID pre-configured for immediate deployment. An Annapurna Labs AL524 quad-core processor at 2.04 GHz and 8GB DDR4 memory handle demanding workloads. It targets organisations that need secure, high-capacity file storage without assembling components themselves.

Upgrade from Older TeraStation or Single-Drive Units

Moving from a legacy TS5010 or TS6000 series device adds native 10GbE connectivity and snapshot backup for near-instant recovery. The jump is worthwhile when teams require faster large-file transfers, VMware or Windows Server 2022 virtualization certification, and centralised remote management across multiple appliances. Buyers who need more than eight drive bays or enterprise-grade drives in every bay should consider other models.

Limits of 10GbE and SATA Interface

The single 10GbE port caps peak network throughput at ten gigabits per second, so aggregate speed cannot exceed that link even with RAID 0. SATA drive interfaces limit individual disk performance compared to newer protocols. Four drive bays remain unpopulated, restricting future expansion to four additional SATA drives. Cloud sync relies on external service availability and bandwidth.

Highlights

  • 32 TB raw capacity with four 8 TB NAS-grade drives pre-installed
  • Quad-core 2.04 GHz processor and 8 GB DDR4 memory for demanding workloads
  • Native 10 GbE plus two 1 GbE ports for high-speed file transfers
  • RAID 0, 1, 5, 6, 10 and JBOD with snapshot backup and AES-256 encryption
  • VMware and Windows Server 2022 certified for virtualization deployments

Specifications

BrandBUFFALO
SeriesTeraStation 5020
ModelTS5820DN3204
Part NumberTS5820DN3204
TypeDesktop NAS
StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Ports1 x 10GbE + 2 x 1GbE
Port RJ-451 x 10GbE + 2 x 1GbE
Port USB2 x USB3.0 + 2 x USB2.0
HDD Interface8 x SATA (8 x Bay)
Form Factor8-Bay
ProcessorAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)
Installed Memory8GB DDR4
Included HDD Capacity32TB (4 x 8TB)
RAIDRAID 0, 1, 5, 6, 10, and JBOD
Drive CompatibilityOP-HD8.0N
Supported ProtocolsTCP/IP
LEDsPower, HDD (Hard Disk Drive), LAN (10/100)
Power100-240 VAC 50/60Hz
Power Consumption112W
Temperature0°C - 40 °C
Humidity0-80% RH non-condensing
UsageHigh read/write performance with RAID
Dimensions9.06 x 11.81 x 8.46 in
Weight23.7 lbs
Package ContentsTeraStation, Quick Setup Guide, AC Cable, Front Panel Key, and Warranty Statement
Shipping weight10.89 kg
Package size419 × 351 × 351 mm

Other versions of this model

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Questions about this item

What drive interface and bay count does the TS5820DN3204 use for its 32TB capacity?

The unit provides eight SATA bays and ships with four 8TB drives installed for a total of 32TB.

How do I connect the NAS to the network and which step is often missed?

Plug the 10GbE port or one of the two 1GbE ports into your switch; the step often missed is enabling jumbo frames on the switch for the 10GbE link.

What drive model should I order when a bay needs a replacement drive?

Use the OP-HD8.0N NAS-grade drive, which matches the original 8TB specification.

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